2002 Chevrolet Trailblazer Q&A

2002 Chevrolet Trailblazer Question: Check gauges

just noticed that my check gauges light would go on then cut off back and forth. I looked at my gauges and noticed that my oil pressure gauge will be fine then fall then jump back to normal. What do you think? -
Answer 1
i would start by changing the oil pressure switch on the engine. -
Comment 1
When I am idleing it drops , then when I give the gas it jumps back to normal ...... Is an oil pressure switch expensive usually? -
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